Dust bag for vacuum cleaners



Nov. 9, 1937. L: N. PARKS 2,098,632

DUST BAG FOR'VACUUM CLEANERS Filed May 18, 1937 Inventor filnwwazk W M A iiorneys Patented Nov. 193% UNITED srATns mam nus-r nae roa vacuum CLEANERS c n; Parka, Caro, nch; Application Ma: 1:, 1m, No. 143,812

7 i 1 Claim. This invention relates to dust bags ior vacuum cleaners, a general object of the invention'being to provide means for forming a relatively small conduit in the bag through which" the dust 6 laden air entering the bag must pass before it reaches the large chamber tormed by the bag so that thevelocity of the dust laden air is checked upon reaching the discharge end of the conduit and thus the major particles of dust and 10 foreign matter are separated by gravityand fall into the lower part of the bag and are not whirled around in the bag with the air as occurs in bags not provided with the invention.

This invention also consistsin certain other 1 features of construction and in the combination and arrangement of several parts, to be hereinafter fully described, illustrated in the accompanying drawing and specifically P nted out in the appended claim;

20 In describing the invention in detail, reference will be had to the accompanying drawing wherein like characters denote like or corresponding parts throughout the several views, and in which:-

25 Figure 1 is a sectional view through abag with the tube therein.

Figure 2 is a view a collar used for mounting the tube in the mouth of the bag.

Figure 3 is a section on the line 3-3 0! Figure 1.

30 As shown in this drawing the conduit 50 is formedoi a tube I! of suitable material and this tube has its front end connected to a split collar 6 having prongs I thereon which are adapted to be pressed through the material 5v at the neck or the bag and then over to connect the collar with the bag as shown in Figure 1. The collar is provided with the periorations I for receiving the stitching which connects the tube with the collar and the ends oi the band or collar I are connected together by. the latch means showngenerally at It. A flexible member I}, preferably of elastic material connect the inner end of the bag to a button I! in the bag so that the inner end 01 thetube is held 6 elevated as shown in Figure 1.

' This device can be readily put in place in bags now in use as the user or a vacuum machine can buy the tube and collar and readily Place it in the bag oi, the cleaner. Thus the dust laden air 10 enters the bag and flows along the conduit with considerable velocity but as it passes from the conduit into the large part 01 the bag the velocity is checked so that the major particles or dust and foreign matter are separated by" gravity when I tailing to the bag'and are not whirled around in the bag'as occurs'in bags-as now constructed. This invention also keeps the dirt away from the intake'oi the bag so that the meter or the vacuum device does not have to force the air into the bag against the dirt.

It is thought from the foregoing description that the advantages and novel features of memvention vwill be readily apparent.

It is to be understood that changes may be made in the construction and in the combination and arrangement of the several parts, provided that such changes fall within the scope of the appended claim.

What is claimed is:--

A conduit forming attachment tor a dust bag comprising a tube or flexible material, a collar connected to one end of the tube and having spikes for engaging with the mouth of a bag and a member connected withjthe other end of the tube for holding the same in raised position'in the bag.

- LEE N. PARKS. 

